Custom WordPress Theme & Billing

I need a tailor-made WordPress theme that blends the clean, AI-inspired feel of https://aiflowfusion.com/ with the simple product-first approach you see on https://shoopy.in/. The site must look polished on desktop and mobile, yet remain lightweight so it loads fast... (Budget: ₹600 - ₹1500 INR, Jobs: HTML, JavaScript, Payment Gateway Integration, PHP, Stripe, Web Development, Website Design, WordPress)